I bought Ultron series Orient 1.5 last year. It was installed on upper story exposed room and chilled it in no time. Removed it this year and installed on ground floor room exposed to sun from side. it freezes even on 28. Hardly can run it for three four hours at night and have to switch off.
Tip: Never use blankets in AC room. For summer only sheets should be used. There is no point is cooling the room so much that u need to take blanket .
This year again I bought Ultron e-comfort Gold 1.5 for another room which had normal PEL 1.5. Nice cooling and very quiet.
Now in winters we have no gas pressure to run heaters so the heating function of these ACs is great.